Bookbinder&#39;s press-punch.



Patented lune I7, 1902.

PL A. BOWEN.

BOUKBINDERS PRESS PUNCH.

(Application filed Jan. 17, 1902.). (No Model.)

TN: nkms Farms 00, Puerouhm. WASHINGTON. n. c,

UNITED STATES PATENT OFFICE.

. PHILIP A. BOWEN, OF MILWAUKEE, WISCONSIN.

'BOOKBINDERS PRESS-PUNCH.

' SPECIFICATION forming part of Letters Patent No. 702,698, dated June17, 1902.

Application filed January 17,1902.. $erial No. 90,113. (No model.)

To all whom it may concern:

Be it known thatI, PHILIP A. BOWEN, a citizen of the United States,residing at Milwaukee, county of Milwaukee, and State of Wisconsin, haveinvented new and useful Improvements in Bookbinders Press-Punches,

of which the following is a specification.

My invention relates to improvements in bookbinders press-punches.

The object of my invention is to provide a device for use by bookbindersor printers by which a person may punch either one hole at a time or aseries of two or more holes simul taneously through several sheets ofpaper; and it pertains more especially to the peculiar construction andarrangement of the parts by which the punch and die, comprising a set,are retained. in the same relative position to each other regardless ofthe relative position of said sets to each other, whereby the liabilityof gettingthe punch and die out of alinement whenchanging theadjustments of the several sets to each other is avoided and theemployment of skilled labor for such purpose becomes unnecessary.

The construction of my invention is further explained by reference tothe accompanying drawings, in which I Figure 1 represents a front view,part in section. Fig. 2 is a vertical section drawn on line to a; ofFig. 1. Fig. 3 is adetail showing an adjustable gage. Fig. 4 is a detailshowing the treadle for operating the machine by foot-power. Fig. 5represents a side view, part in section, showing a modified form ofpunch. Fig. 6 shows the form of hole made by the modified form shown inFig. 5, and Fig. 7 is a perspective View of one of the'gages.

Like parts are'identified-by thesame reference-numerals throughout theseveral views. The punches 1 are connected with'the dies 2 through thepunch guides or bearings 3, supporting-brackets 4, and bracketssupporting shaft 5. The shaft 5 is supported at its respective ends fromthe base or body 6 of the machine by the vertical arms or standards 7. Avertical movement is given to the several punches 1 simultaneously bythe cocentric shaft 8. The shaft 8 is preferably cylindrical in form,but is supported at its respective ends from the arms 7 7 eccentricallyto its longitudinal axis by the bolts or trunnions 9 9. The eccentricshaft Sis actuated by the lever 10, which may be provided with a handleand operated directly by the hand of the user, or'saidlever 10 may beconnected with a treadle 12 bya connecting-rod 18, in which latter casethe punches are actuated by foot-power. When the lever 10 is in itsraised position, as shown in Fig. 2, the punches are thrown up by therecoil of spiral springs 14, each punch in the series being providedwith a similar spring. The springs 14-are interposed between theshoulder 15 of the punch-guide and the shoulder 16 of the punch, wherebyas the several punches are relieved from pressure of the eccentric shaft8 they are thrown up by the recoil of said springs, whereby as saidlever 10 is turned downwardly said spiral springs 14 are compressed andsaid punches are forced through the material to be punched into the die2. The several dies 2 are formed in the plates 17, and said plates areconnected with the bracket 4 by the bolts 18. When relieved frompressure of the foot, the treadle 12 is drawn upwardly by the recoil ofthe spiral spring 19, which spring 19 is connected at its lower end tosaid treadle and at its upper end with the supporting-table 20. It willnow be obvious that in view of the fact that the dies and die-plates arepermanently connected with the punches, as stated, through the brackets4 and stationary supporting-shaft 5 said dies and punches will beretained in the same relative position to eachother regardless of theirhorizontal adjustment upon said supporting-shaft 5. The brackets 4 arelocked at any desired position in relation to each other upon the shaft5 by the set-screw 21.

While I have shown a combination of three sets of punches and diesconnected with the shaft 5, it is obvious that the number may beincreased or diminished, as circumstances may require. I

To facilitate in holding the material to be.

punched in the desired relative position to the punches,

the front of the device, and the gage-bar 23 I regulates thelongitudinal adj ustment of the paper toward the right or left. The bar22 is supported at its respective ends from the standards 7 by thehorizontal connecting-bar 2%, which bar 24 is adjustably supported insaid standards 7 by the set-screws 25, where by by releasing saidset-screws said gage 22 may be adjusted either forwardly or rearwardly,as stated. The gage-bar is slidably supported from the bar 22 by thecollar 26 and is locked at any desired point of adjustment on said bar22 by the set-screw 27.

It will of course be understood that any form of hole may be punched,according to the shape of the punch or die employed. If, however, it isdesirous to out a slot in the paper from the hole to the rear edge ofthe paper, this end is accomplished by the device shown in Fig. 5, bymeans of which a swinging lever 28 is employed to cut the slot from thehole to the margin of the paper. The rear end of the lever28 ispivotally supported from the bracket 29 by the bolt or shaft 30, whilethe front end of said lever 28 is pivotally connected with the punch 31in a recess 32, which recess engages in an aperture 33, formed in thefront end of said lever 28, whereby said lever is moved upwardly anddownwardly with said punch 31 as the same is operated. To the lower sideof the lever 28 is attached an elongated punch 31, which operates in thedie 35, wherebyas said punch 31 is forced through the paper to form thehole 30 (shown in Fig. 0) the punch 3th forms the slot 37. (Shown in thelast-named figure.) When said punch 31 is raised, said lever 28 is drawnupwardly by the recoil of the spring 38, which spring is rigidlysupported at one end from the bracket 29 and is connected at its otherend with said lever 28.

To prevent the lower sheets of a bunch of paper from passing between thegage-bar 22 and the die-plates 17, I have provided a sliding bracket 30,which is adj ustablysupported upon said gage-bar 22 and is provided withdownwardly-projecting lugs or arms 40 40, the lower ends of which armsextend past the junction of said bar 22 with the die-plates 17, thusprecluding the possibility of any of the sheets of paper getting betweensaid gagebar 22 and the die-plates 17.

To prevent the punches 1 from turning in their guides and to limit theirvertical movement therein, they are respectively provided with alongitudinal recess 41, while the punchguides are provided with aset-screw 42, the inner ends of which register with and extend into saidlongitudinal slot or recess, whereby the vertical movement of saidpunches is limited to the length of said slot or recess.

To prevent the concussion or noise that might otherwise occur as thelever 10 is drawn down by the action of the treadle, I have provided aconnecting-link 43 between said lever 10 and the connecting-rod 13 withan elastic cushion 44, which as said rod 13 is drawn down is brought incontact with the base or body 6 of the machine.

I am aware of the fact that in a somewhatanalogous machine a series ofpunch sets have been supported from a solid base-plate of a machine bydovetail-shaped flanges and grooves located directly beneath theeccentric shaft, in which case it becomes necessary to form thecontiguous surfaces of the tongues and grooves of the punch sets, aswell as the base-plate, with the greatest skill and care that the samebe properly supported in position for work, while by my improvement theseveral punch sets rest upon the plain upper surface of the base-plateabove a longitudinal channel formed for the reception of the refusematter punched from the paper, and I am enabled thereby to form the diein a separable or detachable plate 17, which is afterward secured to thepunch set by screws 18 and may,if worn or broken,be readily replacedwith another, and said several punch sets are adjustably supportedbeneath the eccentric shaft 8 by the stationary shaft 5. For this formof construction a piece of ordinary cylindrical shafting is used for theshaft 5, and an aperture is formed by drilling through thesupporting-bracket 4 of the punch sets for the reception of said shaft,whereby the construction is greatly simplified and the side strainproduced by the turning of the eccentric shaft against the upper end ofthe punch, which has a tendency to throw said punch out of the verticaland incline the same in the direction of movement of the eccentricagainst said punch as the punch is being forced with great pressurethrough the paper, is much more effectually resisted by supporting thebracket at or near its upper'end than it is possible to support the sameat its base alone, as shown in said prior patent, and said diosets aremore rigidly held in place.

Having thus described myinvention, what I claim as new, and desire tosecure by Letters Patent, is

1. In apress-punch of the class described, the combination of asupporting-base, provided with a longitudinal channel; a plurality ofpunch sets, each set comprisinga punch and a die registering with eachother and with said longitudinal channel; a punch-guide; a stationaryshaft for adjustaby connecting all of said punch sets together, locatedabove said base; means for locking said sets at any desired point ofadjustment in relation to each other, on said stationary shaft; aseparate eccentric shaft adapted to bear against the up per ends andsimultaneously operate all of said punches, and permit of any desiredadjustment of saidpunch setsin relation to each other; and means forturning said eccentric shaft on its supporting-axis, and simultaneouslyoperating all of said punch sets, as set forth.

2. In a press-punch of the class described, the combination of asupporting-base, provided with a longitudinal channel; a plurality ofpunch sets, each set comprising apunch and detachable die-plate,provided with a die, said punch and die rogisterin g with each other andwith said longitudinal channel; a punchguide; a stationaryshaftadjustably connecting all of said sets together; means for locking saidsets at any desired point of adjustment in relation to each other onsaid stationary shaft; an eccentric shaft adapted to bear against theupper ends and simultaneously operate all of said punches; and permit ofany desired adjustment of said punch sets in relation to each other; andan operatinglever attached to said eccentric shaft, asset forth.

3. In a press-punch, of the class described,

the combination of a supporting-base;a plurality of punch sets, eachcomprising a punch, a die registering with said punch and a punchguide,the parts of each set. being permanently connected together; a singlestationary shaft connecting I all of said sets together;

means for lockingsaid sets in any desired relative position to eachother on said stationary connecting-shaft; a single eccentric adjustablegage-bar for limiting the rear-. ward movement of the paper to bepunched;

shaft adapted to bear against and simultaneously operate all of saidpunches and permit of any desired adjustment of said'punch sets inrelation to each other; a longitudinal and a transverse gage-baradjustably secured to said longitudinal bar; aspring for raising thepunches of said several sets when relieved from the downward pressure ofsaid eccentric shaft; an operating-lever connected with said eccentricshaft; a treadle adapted to be operated by foot-power; means forcommunicating motion from said treadle to the operating-lever of saideccentric shaft, as

downward pressureis applied to said treadle and means for-raising saidtreadle and reversin g the movement of said operating-lever when saidtreadle is relieved from downward pressure, asset forth.

4. In a press-punch of the class described, the device herein describedfor cutting an elongated recess in connection with a hole, consistinginthe combination with thepunch proper; of a'vibratory lever pivotallycon-.-

nected at ,one end-with the supporting-base, and connected at its"opposite end with said punch; a secondary punch secured to saidvibratory lever in close proximity to said firstmentioned punch; diesregistering with said punches; and means for simultaneously raising-bothof saidpunches when relieved from pressure, substantially as and for thepurpose specified.

' Iutestimony whereof I affix my signature in the presence of twowitnesses.

PHILIP A. BOWEN. Witnesses:

JAs. B. ERWIN,

O. L. RoEsoH.

